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Finding the Fourth Proportional to 346,695.40, 520,043.10 and 169,316.20

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Solution

The fourth proportional to 346,695.40, 520,043.10 and 169,316.20 is: 253,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,695.40 : 520,043.10 = 169,316.20 : x
  2. Step 2: Convert to fraction form
    346,695.40/520,043.10 = 169,316.20/x
  3. Step 3: Cross multiply
    346,695.40x = 520,043.10 × 169,316.20
  4. Step 4: Simplify right side
    346,695.40x = 88,051,721,528.22
  5. Step 5: Solve for x
    x = 88,051,721,528.22/346,695.40
  6. Step 6: Final answer
    x = 253,974.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.